Protonym: Oreophasis Derbianus Gen.Birds 3 p.485 pl.121
Category: Galliformes / Cracidae / Oreophasis
Taxonomy Code: horgua1
Type Locality: Guatemala.
Author: Gray, GR
Publish Year: 1844
IUCN Status: Endangered
(Cracidae; Ϯ Horned Guan O. derbianus) Gr. ορος oros, ορεος oreos mountain (i.e. mountains of Guatemala); Mod. L. phasis pheasant < Med. L. phasis avis pheasant; "OREOPHASIS. Bill lengthened, compressed on the sides; the base of both mandibles covered with soft velvety down, forming a short but lengthened crest along the basal portion of the culmen to the front of the nostrils; the anterior part of the culmen vaulted and arched to the tip; nostrils concealed by the velvety down, except the opening, which is rather ovate. Wings rather short, and much rounded, with the sixth and seventh quills the longest. Tail lengthened, very broad, and much rounded at its end. Tarsi rather shorter than the middle toe, robust. Toes long, and the lateral ones equal; the claws moderate, compressed, and slightly curved. The space above the eye naked; with a broad, rounded, and elevated knob, truncated at its end. Two longitudinal stripes below the under mandible, and a semicircular space on the throat, denuded of feathers. This fine bird was brought from Guatemala; but its habits and manners are at present unknown. O. Derbianus G. R. Gray." (G. Gray 1844); "Oreophasis G. R. Gray, Gen. Bds., 1844, p. , col. pl. 121 and pl. . Type, by monotypy, Oreophasis derbianus G. R. Gray." (Peters 1934, II, 24).
Var. Oreophasianus (Gr. φαςιανος phasianos pheasant).
derbiana / derbianus
Edward Smith Stanley 13th Earl of Derby (1775-1851) English zoologist, founder of Knowsley Menagerie (Aulacorhynchus, syn. Chauna chavaria, syn. Ensifera ensifera, syn. Lyrurus tetrix, Oreophasis, Orthotomus, subsp. Pitangus sulphuratus, Psittacula) (see also derbyanus).
UPPERCASE: current genus
Uppercase first letter: generic synonym
● and ● See: generic homonyms
lowercase: species and subspecies
●: early names, variants, mispellings
†: type species
Gr.: ancient Greek
<: derived from
syn: synonym of
/: separates historical and modern geographic names
ex: based on
TL: type locality
OD: original diagnosis (genus) or original description (species)